#564: Cabal doesn't use LD options when testing linking ----------------------------+----------------------------------------------- Reporter: igloo | Owner: Type: defect | Status: new Priority: high | Milestone: Component: Cabal library | Version: 1.6.0.1 Severity: normal | Keywords: Difficulty: unknown | Ghcversion: Platform: | ----------------------------+----------------------------------------------- When checking to see if the C libraries are available, Cabal isn't using the LD options that it has been given. This example is using GHC's `ghc-cabal` program, but that's just a thin wrapper around the Cabal library. It looks like it's in `checkForeignDeps` in `Distribution.Simple.Configure` that it goes wrong. Note that `--ld- options="-L/usr/local/lib "` is passed, but not used in the `gcc` commands that do the linking. {{{ $ "inplace/bin/ghc-cabal" configure --with-ghc="/home/kili/src/ghc/ghc- head/inplace/bin/dummy-ghc" --with-ghc-pkg="/home/kili/src/ghc/ghc- head/inplace/bin/ghc-pkg" --with-gcc="gcc" --configure-option=--with- cc="gcc" --with-hscolour="/usr/local/bin/HsColour" --configure- option=CFLAGS="-O -I/usr/local/include " --configure- option=LDFLAGS="-L/usr/local/lib " --gcc-options="-O -I/usr/local/include " --ld-options="-L/usr/local/lib " -v3 -- dist-install libraries/integer- gmp [boring stuff skipped] ("sh",["configure","--with-compiler=ghc","--with-cc=gcc","CFLAGS=-O -I/usr/local/include ","LDFLAGS=-L/usr/local/lib "]) checking build system type... x86_64-unknown-openbsd4.5 checking host system type... x86_64-unknown-openbsd4.5 checking target system type... x86_64-unknown-openbsd4.5 checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking for __gmpz_fdiv_qr in -lgmp... yes configure: creating ./config.status config.status: creating integer-gmp.buildinfo config.status: creating gmp/config.mk Reading parameters from ./integer-gmp.buildinfo ("/usr/bin/gcc",["-O","-I/usr/local/include","/tmp/2499.c","-o","/tmp/2499","-O","-I/usr/local/include","-D__GLASGOW_HASKELL__=611","-I.","-I/home/kili/src/ghc /ghc-head/includes","-I/home/kili/src/ghc/ghc- head/libffi/build/include","-lgmp"]) /usr/bin/gcc returned ExitFailure 1 with error message: /usr/bin/ld: cannot find -lgmp collect2: ld returned 1 exit status ("/usr/bin/gcc",["-O","-I/usr/local/include","/tmp/2499.c","-o","/tmp/2499","-lgmp"]) /usr/bin/gcc returned ExitFailure 1 with error message: /usr/bin/ld: cannot find -lgmp collect2: ld returned 1 exit status ("/usr/bin/gcc",["-O","-I/usr/local/include","/tmp/2499.c","-o","/tmp/2499","-lgmp"]) /usr/bin/gcc returned ExitFailure 1 with error message: /usr/bin/ld: cannot find -lgmp collect2: ld returned 1 exit status ("/usr/bin/gcc",["-O","-I/usr/local/include","/tmp/2499.c","-o","/tmp/2499","-c","-O","-I/usr/local/include","-D__GLASGOW_HASKELL__=611","-I.","-I/home/kili/src/ghc /ghc-head/includes","-I/home/kili/src/ghc/ghc-head/libffi/build/include"]) ghc-cabal: Missing dependency on a foreign library: * Missing C library: gmp This problem can usually be solved by installing the system package that provides this library (you may need the "-dev" version). If the library is already installed but in a non-standard location then you can use the flags --extra-include-dirs= and --extra-lib-dirs= to specify where it is. }}} -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/564 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects